Nothing, but the team seems to want the yellow as a bit of a contrast to the two types of blue/indigo they use. That's a topic for a different thread, not this one.
Again, not the thread for this, but I haven't heard anything specific, but there have always been rumors that we'd get a new logo and potentially a new name when the stadium opened. As for jerseys, we're on a 2 year cycle with Adidas, we get new jerseys next year.
Everything in your post was going fine....until this last line. You just couldn't resist one little jab at the Cauldron...nice. And no, we don't want to align our group with anything remotely associated with the whole Wizard of Oz theme. At least not while I am in charge.
The team's desire to irritate Wizardscharter is the only reason to keep yellow on the uniform. I would not be surprised to see even more yellow in future versions to continue the efforts to frustrate the campaign to return to the one true blue. (just kidding)